Another example how men and women are different and meant to be different.

Women trying to be men may lose their ability to be pregnant and thus lose the key differentiation of being a female. In a sense women not acting like females get sick and that sickness is called secondary amenorrhea (no menstraution aka periods). An example is females who are overly athletic. Females who are overly athletic disrupt their hormonal regulation that allow them to have periods. Below in italics are the technical jargon if you guys are interested in the pathophysiology.

Female athlete triad is a syndrome in which eating disorders, amenorrhea, and osteoporosis are present in females participating in sports that emphasize leanness. Decreased body fat, increased beta-endorphins, and a chronic energy imbalance in female athletes reduce the activity of the hypothalamic centers responsible for the secretion of GnRH. Reduction of central drive GnRH results in low FSH and LH levels. This leads to no LH surges, decreased estrogen production and abnormal follicular development, which prevents ovulation and menstruation from occurring.

TL;DR: Women who are overly athletic get secondary amenorrhea, the inability to have periods aka menstruation. Is this another evidence based fact that men should act like males and women should be act like females? Take it as you will.